CH 10 NUTRITION

Malnutrition is the condition in which a person suffers due to a lack or deficiency of one or more essential elements of food.

It serves the following functions: It is used in the excretion of soluble wastes. It is used to produce digestive juice. It is involved in the maintenance of body temperature.

Proteins provide chemical material for the growth and repair of body cells and tissues.

The functions of fats are:- Fat produces energy in the body like carbohydrates. It is an important storage form of food. It serves as a solvent for fat-soluble vitamins. Fat under the skin protects the body against a rapid loss of heat.

Fats are composed of carbon, hydrogen, and oxygen and they produce more energy than carbohydrates.

There are six classes of nutrients: Carbohydrates Fats Proteins Mineral salts Vitamins Water

Cellulose is found in the cell walls of plant and provide roughage for the proper functioning of the gut.

Starch is an insoluble carbohydrate that is stored in plants.

The use of nutrition for the living organism are: Building up new cells for growth. Providing material for the repair of injured cells. Providing energy for various life functions. Maintenance of chemical composition of cells. Protection from disease and infection.

Carbohydrates are the principal energy sources in the body.